Tinctures
Tinctures are liquid herbal extracts made by combining the herbs with a solvent. Traditional tinctures are made with alcohol, but you can also use vinegar or vegetable glycerin (available at many health food stores) instead.
Tinctures are typically more potent than infusions, decoctions, or syrups.
When you're making tinctures at home, never use industrial alcohols, such as rubbing alcohol (isopropyl alcohol) or methylated spirits (methyl alcohol). Both are extremely toxic. Stick to beverage alcohols, such as vodka and brandy, or use a nonalcoholic substitute like glycerin.
Start with bulk herbs (fresh is best) and chop them finely. Put them into a clean glass jar and add enough alcohol — 80- or 100-proof vodka, gin, or brandy — to cover them with about 2 or 3 inches of fluid. Cover with a tight-fitting lid, place the jar in a warm, dark spot, and leave it there for four to six weeks — the longer, the better.
Once a day, shake the jar to keep the herbs from settling at the bottom.
When the time is up, strain the herbs and discard them. Transfer the tincture to a small glass bottle (ideally one with a dropper, which makes it easier to get the right dose). Stored properly, it will keep for two years or longer. Be sure to keep tinctures out of the reach of children.
Brain-Boosting Tincture
2 parts ginkgo (Ginkgo biloba) leaves
2 parts gotu kola (Centella asiatica) leaves
1 part peppermint (Mentha x piperita) leaves and flowers
1 part rosemary (Rosmarinus officinale)
Follow the directions for making a tincture, above.
Headache Relief Tincture
1 part California poppy (Eschscholzia californica) seeds
1 part feverfew (Tanacetum parthenium) leaves and flowers
1 part lavender (Lavandula angustifolia) flowers
Follow the directions for making a tincture, above.

